Dual muscle roller



FIG. 1 is a top front perspective view of a dual muscle roller.

FIG. 2 is a top rear perspective view thereof.

FIG. 3 is a bottom front perspective view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a right-side view thereof (the left-side view is a mirror image thereof).

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for a dual muscle roller, as shown and described. 